EP0171613B1 - Druckwerk - Google Patents

Druckwerk Download PDF

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Publication number
EP0171613B1
EP0171613B1 EP85108719A EP85108719A EP0171613B1 EP 0171613 B1 EP0171613 B1 EP 0171613B1 EP 85108719 A EP85108719 A EP 85108719A EP 85108719 A EP85108719 A EP 85108719A EP 0171613 B1 EP0171613 B1 EP 0171613B1
Authority
EP
European Patent Office
Prior art keywords
printing
setting
wheels
setting wheels
bands
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85108719A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0171613A1 (de
Inventor
Heinrich Volk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meto International GmbH
Original Assignee
Esselte Meto International Produktions GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Esselte Meto International Produktions GmbH filed Critical Esselte Meto International Produktions GmbH
Priority to AT85108719T priority Critical patent/ATE40320T1/de
Publication of EP0171613A1 publication Critical patent/EP0171613A1/de
Application granted granted Critical
Publication of EP0171613B1 publication Critical patent/EP0171613B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
    • B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
    • B41K3/02—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface
    • B41K3/04—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface and movable at right angles to the surface to be stamped
    • B41K3/06—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface and movable at right angles to the surface to be stamped having type-carrying bands or chains

Definitions

  • the invention relates to a printing unit according to the preamble of the claim.
  • Such a printing unit is known from US-A-4 050 376. When using the printing unit, they are just at one The printing positions of the printing positions are colored before the actual process and then brought into contact with the medium to be printed.
  • the display types are assigned to the print types on the tapes in their position so that for each print type currently in the print position a corresponding display type is arranged at a display position which is visible to the operator so that he can recognize which character with the print type in the print position can be printed.
  • the display types are usually placed on a white background. If the setting wheels could be turned as far as desired using the setting shaft, it could easily happen that the display types accidentally get into the printing position and are colored with printing ink.
  • the teeth on the inner surfaces of the printing bands are made of elastically deformable material, it cannot be ruled out with certainty that the foremost tooth in the direction of rotation slips over the stop shoulder by exerting excessive torque by means of the actuating button on the setting wheels, which is supposed to limit the angle of rotation of the printing tapes. It is therefore not excluded with certainty that the display types end up in the printing area and are therefore undesirably colored with printing ink.
  • the invention has for its object to develop a printing unit of the type described so that the problems associated with the use of a slip clutch are eliminated.
  • a gap is formed in the area of a stop shoulder which is so narrow that the pressure band with the tooth attached to its inner surface can in no way move through this gap.
  • the pressure band in the area of the stop shoulders can in no way be stretched so far that the tooth lying against the stop shoulder slips over the stop shoulder, so that this also reliably prevents the pressure band from turning further.
  • the printing unit 10 shown in FIG. 1 contains a printing unit housing which is composed of two housing halves 12 and 14 and in which a plurality of printing bands 20 which are arranged parallel to one another and are guided around setting wheels 16 and a deflection edge 18 are accommodated.
  • the printing tapes 20 carry printing types 22 on one half of their outer circumferential surface and display types 24 on the other half.
  • the assignment of the printing types 22 to the display types 24 is carried out in such a way that printing types 22 which are in the printing position at the deflection edge 18 as in FIG 2 and display types 24, which are visible through a window 26 arranged on the top of the housing, each represent the same number, the same letter or the like. This means that it can be seen on the top of the housing through the window 26 which character can be printed on the recording medium with the printing types 22 located at the bottom on the deflecting edge.
  • the pressure tapes 20 are guided around setting wheels 16 which are rotatably mounted on a sleeve 28.
  • the sectional view of Fig. 2 shows that in the sleeve 28 three slots 30, 32 and 34 are made, which are open at the right end of the sleeve in Fig. 1.
  • the setting shaft 42 is axially displaceably mounted in a bearing bushing 44 in the housing half 14. By displacing the setting shaft 42 in the axial direction, this shaft can be brought into a drive connection by engagement of the teeth 36, 38 and 40 in recesses 46 in the hub regions of the setting wheels 16.
  • an actuation button 48 is attached, with the aid of which the shaft can be axially displaced on the one hand and rotated on the other hand.
  • the teeth 36, 38 and 40 attached to it are first brought into engagement with the recesses 46 of an adjusting wheel 16 to be adjusted, and by rotating the adjusting shaft 42 the pressure band 20 which is guided around its outer circumference is then moved for as long as until a desired print type 22 is in the print position below the deflection edge 18.
  • the respective position of the print types 22 can be checked through the window 26 attached to the top of the housing.
  • the pressure bands 20 have teeth 50 on their inner surface, which engage in recesses 52 in the outer peripheral surfaces of the setting wheels 16.
  • a latching mechanism is provided which ensures that the adjusting shaft engages in positions in a manner that is clearly perceptible to the operator when it is axially adjusted , in which a clear drive connection is made with an adjusting wheel 16 to be adjusted.
  • This locking mechanism contains a locking finger 54 integrally formed on the sleeve 28, which projects radially inwards on the inner surface of the sleeve and engages in locking recesses 56 which are provided in a region of the outer peripheral surface of the adjusting shaft 42.
  • a locking recess 56 is provided for each of the setting wheels 16 mounted on the sleeve 28.
  • the setting shaft 42 is moved to the right so that it comes into engagement with the next setting wheel 16, for example first the latching force exerted by the latching finger 54 on the adjusting shaft 42 is overcome when it is moved upward out of the associated latching recess 56 in the illustration in FIG. 1; it can then fall into the next latching recess 56, which occurs precisely when the setting shaft 42 is in engagement with the second setting wheel 16 from the left.
  • the slotted sleeve 28 serves as a bearing axis for the setting wheels 16, special attention must be paid to their storage and attachment in the printing unit.
  • the sleeve 28 must have an outer diameter that is as constant as possible for mounting the adjusting wheels 16, and on the other hand it must also have a precisely defined inner diameter so that the adjusting shaft 42 can be easily axially displaced without clamping.
  • the sleeve 28 is attached on one side, the left side in FIG. 1, in a circular cylindrical recess 58. Since the slots 30, 32 and 34 do not pass through on this side of the sleeve 28, the bearing of the sleeve 28 on its outside is sufficient at this point. On the other side, the right side in FIG.
  • the three sleeve segments formed due to the continuous slots 30, 32 and 34 sit on a hub 60 which is formed on the housing part 14.
  • the hub 60 ensures that the sleeve 28 has the necessary stability for the storage of the adjusting wheels 16 at the associated end despite the continuous slots.
  • the hub 60 keeps the slots spread apart so that the teeth 36, 38 and 40 can be easily moved along the slots without jamming.
  • the adjusting shaft 42 extends in the section immediately adjacent to the actuating button 48 through a passage 62 which is attached to a conical cap 64.
  • this cap has the task of ensuring a smooth covering of the upper part of the printing unit 10. But it also carries a frame 27 surrounding the window 26, which is slidably mounted on the top of the housing; the type of storage is clear from Fig. 2.
  • the frame 27 moves with the window 26, the end of the viewing window on the left in FIG. 1 lying straight in the plane of the setting wheel 16 with which the setting shaft 42 is engaged and that consequently can be adjusted.
  • the operator knows in each axial position of the setting shaft 42 which print tape can be brought into the desired position.
  • This locking mechanism consists of a helical spring 66 which is arranged parallel to the longitudinal axis of the adjusting shaft 42 on the circumference of the adjusting wheels 16 so that it partially penetrates into the recesses 52 on the circumference of the adjusting wheels 16, which can be clearly seen in FIG. 2. So that the setting wheels 16 can be turned, although the coil spring 66 engages in its recesses according to FIG. 2, the coil spring 66 is mounted on an elastically flexible cushion 68.
  • the helical spring 66 can deflect in this way and press into the cushion 68.
  • the operator thereby feels when Rotation of the setting wheels from the position shown in FIG. 2, in which a tooth 70 is moved between the recesses 52 towards the coil spring 66, initially an increase in the torsional force to be used, which then decreases again when the coil spring penetrates into the next recess 52.
  • the operator therefore senses significant force peaks, and he knows that whenever he has overcome a force peak, a print type 22 is in the exact printing position below the deflection edge 18.
  • the printing types 22 in one length section there are printing types 22 in one length section and display types 24 in another length section.
  • the printing types are first inked before each printing operation, whereupon the inked printing types are then printed with the medium to be printed on Be brought in contact.
  • Through the window 26 can be read on the display types 24, which characters can be printed on the medium to be printed with the current setting of the printing tapes.
  • the display types 24 come into a position below the deflection edge 18 during the adjustment of the printing bands, in which position they could come into contact with the inking mechanism used for inking the printing types.
  • the readability of the display types 24 in the window 26 would be severely impaired by the undesired coloring.
  • the pressure tapes 20 include teeth 50 attached to a portion of the inner peripheral surface of the pressure tapes 20, which are also used to drive the pressure tapes 20 by engaging the recesses 46 in the adjustment wheels 16.
  • the housing in the area within the pressure bands 20 has a web 72 which runs parallel to the pressure bands 20 and which is attached at such a distance from the pressure bands that the teeth 50 run along it unhindered can move.
  • the web 72 has a stop shoulder 74 directly adjacent to the deflecting edge 18, which is shaped in such a way that the foremost tooth 50 in the direction of movement abuts against this stop shoulder 74 at its full height when it hits the area the deflection edge 18 is reached.
  • This stop shoulder 74 prevents the area of the outer circumferential surface of the printing bands 20, which carries the display types 24, from reaching the printing position below the deflection edge 18. 2 that the display types 24 are located in the area of the outer circumferential surface of the printing tapes 20 in which the teeth 50 are attached to the inner circumferential surface.
  • the web 72 and the stop shoulder 74 limit the rotation of the pressure tapes 20 in the view of FIG.
  • a second web 76 is attached to the housing and also has a stop shoulder 78 directly adjacent to the deflection edge 18. This stop shoulder 78 prevents the pressure tapes 20 from rotating beyond a limit position which is present when the tooth 50 which is at the front when rotated counterclockwise abuts the stop shoulder 78.
  • the pressure bands 20 and the teeth 50 attached to their inner surface are made of deformable material, the pressure bands 20 could possibly be twisted beyond the limit positions defined on both sides of the deflection edge 18 by applying an excessive force when rotating the adjusting shaft 42, while deforming the teeth 50, which would have the undesirable consequence that the display types come into contact with the printing ink.
  • the actuating button 48 is not positively connected to the adjusting shaft 42, but rather non-positively.
  • the non-positive connection arises from the fact that the actuating button 48 is press-fitted onto the end of the adjusting shaft 42 protruding from the housing, the press-fit being dimensioned such that the torque that can be transmitted from the actuating button 48 to the adjusting shaft 42 is sufficient, the pressure tapes 20 adjust, the actuating button 48 slips on the setting shaft 42, however, as soon as the just adjusted pressure band 20 reaches one of its limit positions, in which the tooth 50 lying at the front in the adjustment direction comes into contact with the stop shoulder 74 or 78.
  • the desired press fit can be achieved most simply by manufacturing the actuating button 48 from a rubber-elastic material such as Vulkollan and by forming the bore in it for receiving the adjusting shaft 42 with an inner diameter which is smaller than the outer diameter of the one projecting from the housing End of the adjusting shaft 42. is. Due to the elasticity of the Vulkollan material, the actuation button 48 can be easily pushed onto the setting shaft 42, and can even be pressed over the extended shaft end 80 shown in FIG. 1, which prevents it from sliding off the shaft again after being pushed on.
  • a rubber-elastic material such as Vulkollan
  • the Connection between the actuation button 48 and the setting shaft 42 acts like a slip clutch, which slips as soon as the moment of resistance counteracting the twisting movement from a just adjusted pressure band 20 becomes greater than the torque that can be transmitted from the actuation button 48 to the setting shaft 42. This certainly occurs when the print ribbon 20 to be adjusted reaches one of its limit positions.
  • a web 84 is attached to the housing half 12, which has an end edge 86 which is at such a distance from the stop shoulder 74 that the gap between it and the stop shoulder 74 is smaller than the height of the Tooth 50 plus the thickness of the printing tape is.
  • the web 84 with its end face 86 prevents the pressure band 20 from turning further, since the narrow gap prevents the passage of the Tooth 50 on the printing belt 20 makes impossible.
  • This measure also contributes to greatly reducing the tolerance requirements placed on the slip clutch between the actuating button 48 and the setting shaft 42.
  • the actuating button 48 can be seated so firmly on the adjusting shaft 42 that the normal adjustment processes of the pressure tapes are possible at any time, even if the torque to be used for the adjustment should increase due to contamination after prolonged use.

Landscapes

  • Glass Compositions (AREA)
  • Die Bonding (AREA)
  • Impact Printers (AREA)
  • Press Drives And Press Lines (AREA)
  • Handcart (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Handling Of Sheets (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Duplication Or Marking (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Pens And Brushes (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Labeling Devices (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Noodles (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Massaging Devices (AREA)
  • Printers Characterized By Their Purpose (AREA)
EP85108719A 1984-07-27 1985-07-12 Druckwerk Expired EP0171613B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108719T ATE40320T1 (de) 1984-07-27 1985-07-12 Druckwerk.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3427858 1984-07-27
DE3427858A DE3427858C2 (de) 1984-07-27 1984-07-27 Druckwerk

Publications (2)

Publication Number Publication Date
EP0171613A1 EP0171613A1 (de) 1986-02-19
EP0171613B1 true EP0171613B1 (de) 1989-01-25

Family

ID=6241796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108719A Expired EP0171613B1 (de) 1984-07-27 1985-07-12 Druckwerk

Country Status (10)

Country Link
US (1) US4679500A (enrdf_load_stackoverflow)
EP (1) EP0171613B1 (enrdf_load_stackoverflow)
JP (1) JPS6183090A (enrdf_load_stackoverflow)
AT (1) ATE40320T1 (enrdf_load_stackoverflow)
AU (1) AU553459B2 (enrdf_load_stackoverflow)
BR (1) BR8503544A (enrdf_load_stackoverflow)
DE (2) DE3427858C2 (enrdf_load_stackoverflow)
DK (1) DK160606C (enrdf_load_stackoverflow)
NO (1) NO163521C (enrdf_load_stackoverflow)
ZA (1) ZA855305B (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605301A1 (de) * 1986-02-19 1987-08-20 Esselte Meto Int Gmbh Druckwerk
DE4214216C2 (de) * 1992-04-30 1997-04-24 Esselte Meto Int Gmbh Druckwerk
JP3364253B2 (ja) * 1992-11-20 2003-01-08 株式会社新盛インダストリーズ 印字装置
JP2750652B2 (ja) * 1993-03-30 1998-05-13 株式会社サトー 印字器に於ける見出文字の汚れ防止機構
CN1064004C (zh) * 1994-06-09 2001-04-04 新盛工业股份有限公司 带有多条环形带及其制动装置的印刷机
ES2158573T3 (es) * 1996-08-08 2001-09-01 Sato Kk Impresora.
TW415377U (en) * 1996-12-24 2000-12-11 Kazunosuke Makino Character wheel, character wheel band and character wheel ring
DE10041522A1 (de) * 2000-08-24 2002-03-07 Meto International Gmbh Druckwerk
JP2005132068A (ja) * 2003-10-31 2005-05-26 Brother Ind Ltd 印判
WO2013112857A2 (en) * 2012-01-25 2013-08-01 Navitor, Inc. Self-inking marking device
AT517318B1 (de) * 2015-06-10 2024-07-15 Trodat Gmbh Stempel und Abdruckeinheit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1058008A (en) * 1912-04-30 1913-04-01 Meredith G Standley Registering-stamp.
DE1966066A1 (de) * 1969-06-10 1971-04-22 Meto Gmbh Kind Oscar Druck- oder Stempelvorrichtung mit Typenbaendern
US4050376A (en) * 1973-10-15 1977-09-27 Monarch Marking Systems, Inc. Selective printing apparatus
CA1028892A (en) * 1973-10-15 1978-04-04 Monarch Marking Systems Selective printing apparatus
JPS5612510A (en) * 1979-07-13 1981-02-06 Hitachi Ltd Sucked air flow meter for internal combustion engine
GB2064435B (en) * 1979-11-24 1984-02-15 Norcros Investments Ltd Adjustable facet print heads
US4290358A (en) * 1980-01-11 1981-09-22 Monarch Marking Systems, Inc. Print head
JPS5938191Y2 (ja) * 1980-07-29 1984-10-24 三洋電機株式会社 電気ポット
JPS5910316A (ja) * 1982-07-08 1984-01-19 Kurita Water Ind Ltd 電磁フイルタ

Also Published As

Publication number Publication date
DE3427858C2 (de) 1987-03-12
DK160606C (da) 1991-09-02
NO163521C (no) 1990-06-13
DK337185A (da) 1986-01-28
JPS6183090A (ja) 1986-04-26
NO163521B (no) 1990-03-05
ATE40320T1 (de) 1989-02-15
ZA855305B (en) 1987-02-25
AU4514085A (en) 1986-01-30
NO852950L (no) 1986-01-28
DK337185D0 (da) 1985-07-24
AU553459B2 (en) 1986-07-17
BR8503544A (pt) 1986-04-22
US4679500A (en) 1987-07-14
DE3567832D1 (en) 1989-03-02
EP0171613A1 (de) 1986-02-19
DE3427858A1 (de) 1986-02-06
DK160606B (da) 1991-04-02
JPH0434951B2 (enrdf_load_stackoverflow) 1992-06-09

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